Air conditioning device for cold storage rooms



Nov. 24, 1931.

- C. A. MOORE AIR CONDITIONING DEVICE FOR COLD STORAGE ROOMS s Sheets-Sheet 1 Original Filed March 19. 1930 H mi Chmlzs- A. M00142 64101 new 1 AIR CONDITIONING DEVICE FOR COLD STORAGE ROOMS OriginaLFiled March 19, 1930 3 Sheets-Sheet 2 Charles A. M00142 Nov. 24, 1931. c. A. MOORE 1,332,874

AIR GQNDITIONING DEVICE FOR COLD STORAGE ROOMS 7 Original Filgd March 19, 1930 3 Sheets-Sheet 3 Charles A. MOOLQ I 20 room, the building Patented Nov. 1 931 UNITEDSTATES PATENT QFHCE $99 3.01 Enmamm App1lcation filed March 19, 1986, Serial No. 437,012. Renewed April 30,1981.

My invention relates to improvements in .air conditioning devices for cold storage rooms. 7

An object of the invention isto provide simple, durable and effective refrigerating means for a room capable of. being constructed and installed at relatively smallcost and adapted to ventilate the room and set up a convective and diffused circulation of the 10 air therein. With the foregoing and other objects in view, which will appear in the following descri tion, the invention resides in the novel com ination' and'arrangeinent of parts and .15 inthe details of construction hereinafter described and claimed. 4 I In the drawings, Fig. 1 is a'plan view of a device embodying my invention, the same be ing illustrated as applied to a cold storage structure forming the room beingshown in section and taken as on the line 1-1 of Fig. 2 Fig. 2eis a view taken as on the line 2-2 of Fig. 1, said view showing the building structurein section and the device therein in plan; Fig. 3 is a-sectional view taken on the line 3.-3 of Fig. 1 and Fig. 4.is a fragmentary detail view showing one endof the coil bunker in plan, a portion of the bunker being broken away to disclose parts otherwiseconcealed. Reference being had to the drawings, it will 4 be seen that I have illustrated an embodiment of my invention in connection with a room A providedwithin a building structure, con

sisting, of a floor 10, side walls 11, end walls 12 and ceiling 13, all-of which maybe insulated in any suitable. manner. This room A, in accordance with, theusual practice in connectionwith cold stora e rooms, is elon-- gated and of sufiicient widt laterally to pro- -vide lading spaces on opposite sides-of a central'truckmg aisle. Within the up er pjortion of the room and overhead oven t is aisle,

I arran e my improved air conditioning de- 'ce whlch includos a bunker B. This bunker comprises sides 14, ends 15 and a bottom 16 7. having an elongated central port 17 therein sto ping short at its ends of the ends 15 of the unker. Saidbunker Bis-a double-walled structure preferably formed of sheet metal,

edges of the port'17. At the from the ceiling by means within one of the ends 15 portion of said end, said pipe be- 'wardly through the port 1 the-sides, ends and bottom being hollow to provlde passageways within the interior thereof for the passage therethrough of a ventilating flow of air. In the spaces within the ends 15 and'end portions of the bottom 16 are partition stripslda'nd 19 which lie in a vertical plane medially longitudinally of the bunker structure.

14 and ends 15 at one side of this plane com- !nunicate witheach other and with the space within the bottom 16, at the same side of the plane, said latter bottom space "being in communication with the interior of the room through openings 20 and 21 in the side and end portions of the bottom 16, along the other side of the plane in which partition strips 18 and 19 lie, the spaces within the side. 14, ends 15 and bottom 16 intercommimicate, in said side and ends being in communication, along the upper .edges thereof, with the inte-'- rior of the roomthrough openings 22 and 23.

It will be noted that the bunker B isspaced, not only from the sides of the room, but also from the ends thereof and theentire bunker structure being suspended of hangers 24. Extending through oneof the end walls 12 of the room structure is a fresh air ingress p1pe- 25 which communicates with the space of the bunker at the uppermost ing fitted with a damper 26. Extending through the other end wall 12 of the room structure is an air egress pipe 27' which communicates with the air s ace within the adja-- cent-end 15 of the bun er at the lowermostv portion of said end, saidpipe being fitted 'with a damper 28.

Suspended by hanger straps 29, within the bunker B, is a coil 30, the turns thereof being arranged in tiers positioned over. the-side coil-30, being refrigerated by reasonof the 5 refrigerating medium =circulatingl through said coil, descends by gra'vit; passingdown an the bunker- The spaces within the side" from the ceiling,

the spaces and end portions of the bottom 16. This-coil "conveys therethrou'gh a suitable circulating a B to the floor of the room A where the flow of air divides and moves towardthe relatively warm sides of the room along which theair ascends to the ceiling. Thence, the air travels inwardly from the sides 11 of the room passing through the spaces 31 between the upper edges of the sides 14 of the bunker to position over the coil 30 where the downward movement of the air is' again effected. While the circulation of air within the room is, in the main, as above described, it is to be noted that there'will be at either end of the room an n ward movement of air along the ends 12 o the building structure. At the ceiling this flow of air passes inwardly into the upper portion of the bunker B, passing through the spaces 32 between the ends 15 of the bunker structure and the ceiling 13 of the room.

he side and end portions of the bottom 16 about the port 17 slope inwardly and upwardly, the entire bunker structure being tilted slightly endwise. At the lower end of the bunker, I arrange a drain pipe 33. This pipe carries away whatever condensation may accumulate within the spaces betweenthe double walls of the bunker structure. Also, whatever condensation may accumulate on the inner surfaces of the bunker and whatever drip there may be from the coil 30 to the bottom 16 of thebunker, there being an aperture 34 provided in the inner wall of the bottom 16 of the bunker for the passage of water therethrough to the space within said hollow bottom. In this connection it will be understood that the upstanding partition strip 18 in the depressed end of the bunker is cut short or notched slightly at the bottom thereof to permit of the passage of water from the space in the bottom 16 at the side of. the plane of the partition strips opposite the point of connection of the drain pipe 33 to the corresponding space at the other side of, said plane,

- From the foregoing, it will be understood that my improved device creates an internal convective and diffused circulation. of air within the room by gravity. In addition the interior of the room along the port 17 of the bunker, through the openin s 20 and 21 in the side and end ortions a? the bottom 16, fresh air from t e outside being admitted'through the pipe 25,-under control of the damper- 26,t0 the s ace'within the connected end 15of'the bun er, near the upper edge of said end.; The fresh air thus introduced into the room by gravity joins the Air in the passageway formed descending flow "of air at the port 17. The air within the passageway formed by one side 14 and the ends 15 and bottom 16 of the bunker at the opposite side of the plane of said partition strips, is cooled, by reason of the presence of refrigerated air within the. bunker, and gravitates to the outside through the air egress pipe 27, under control of the damper 28, the air within said side 14 and intercomm'unicating parts of the bunker being replaced with airofrom the interior of the room near the ceiling, such air entering the spaces within said side 14 and the ends 15 through the openings 22 and 23 therein. Thus is instituted a ventilating circulation of'air, the air exhausted being taken from theupper portion of the room where it is of highest temperature.

Changes in the specific form of my invention, as herein disclosed, may be made within the scope of what is claimed without departing from the spirit of my'invention.

Having described my invention, what I claim as new and desire to protect by Letters Patent is:

1. The combination with a structure form ing a room, of an elongated coil bunker located centrally of the room at its upper portion and spaced from the ceiling, sides and ends thereof, said bunker comprising a double walled structure including hollow sides, hollow ends and a hollow bottom formed with a central longitudinal port therein falling short at its extremities of said ends, said bottom sloping downward toward said sides and ends from the edges of said port, partition strips within the hollow bottom at either end thereof and similar strips within the hollow ends, said strips lying in a medial vertical plane longitudinally of said bunker, the hollow space in one of said sides communicating withthe hollow spaces within both ends and with the hollow space within thebottom, said spaces within said ends and bottom opening at one side of said partition strips into the interior ofthe room along the adjacent edges of said port, a pipe entering the room from without and communicating with the interior of one of said ends near its upper portion at said side of said strip the hollow space within the other of said sides being in communication with the hollow spaces within the ends and bottom at the corresponding side of said partition strips,

saidspaces within said last mentioned side and ends being in-communication with the interior of the room along the upper edges of latter sideof said partition strips, said egress pipe issuing from the room, a drain pipe eading from the bottom. of the bunker, and a pipe 'for a refrigerant coiled in elongated formation, turn upon" turn, within said bunker, the tiers of ipe reaching alongthe sides of-the coil and the ends thereof being disposed above the bottom of the. bunker along its sides and ends. w 5 2. The combination with a structure forming a room, of an elongated bunker located centrally of the room at 1ts upper portion and spaced from the ceiling, sides and ends thereof, said bunker comprising a double walled structure including hollow sides, hollowends and a hollow bottom formed with a central longitudinal port therein, partition strips within the hollow ends, said strips lying in a medial vertical planellongitudinally of. said bunker, the hollow space in one of said sides communicating with the hollow spaces withd in both ends and with the hollow space within the bottom, said spaces within said ends and bottom opening at one side of said partition strips into the interior of the room along one side of said port, a pipe entering the room from without and communicating with the interior of one of said ends near its upper portion at said side of said strips, the hollow spacewithin the other of said sides being in communication with the hollow spaces within the ends and side of said'partition strips, said spaces within said last mentionedside and ends being in communication with the interior of the room along the upper edges of said sides and ends, an egress pipe communicating with the in terior of one of said ends near the lower portion thereof and at said latter side of said partition strips, said egress pipe issuing from the room, and a conduit for a circulating refrigerant disposed within the bunker.

3. The combination with a structure form-' (1 ing a room, of an elongated bunker located from the ceiling, ends and sides thereo said bunker comprising a structure consisting of sides, ends and a bottom, the sides and bottom, being hollow and the latter formed with a central longitudinal port therein, the hollow space in one of said sides communicating with the hollow space in the adjacent bottom portion, said latter space opening into the interiorpf the room along the edge of said without into the space within said-sid at the upper portion thereof, the hollow space within the other of said sides beingin communication with the hollow space lwithin the adjacent bottom portion, sald latter space-opening intothe interior ,of the room along the upper edge of said side, means for conducting alr to the outside of the room'from said last mentioned bottom portion, and refrigerating means disposed within the bunker. P 4. The combination with a structure forming a room, of anelongated bunker located at the upper portionof-the room and spaced from the ceiling, ends and sides thereof, said bunker comprising a structure consisting of "tion, said latter space cent bottom portion,

hottom atthe corresponding at the upper portion of the room and s aced.

port, means for conducting fresh air from outer atmosphere from said disposed within the extremities to form a central air egress being hollow and the latter formed with a central longitudinal ort therein, the hollow space in;one of said si es communicating with the hollow space in the adjacent bottom por opening into the interior of the room along the edge of said port, means for conduct ng freshairfrom without into the space within said side at the upper portion thereof, thehollow space with-.

in the other of said sides being in communication with the hollow space within the adjasaid latter "space opening into the interior of the room along the upper edge of said side, valved means for conucting air to the outside of the room from sides, ends and a bottom, the sides and bottom said last mentioned bottom portion, and refrigeratingmeans bunker.

5. The combination with a structure forming a-room, of an elongated bunker located disposed within the at the upper portion of the room and spaced from the 'ceihng,ends' and sides thereof, said -bunker compnsing ends, hollow sides and a hollow bottom formed with a central longitudinal port therein, refrigerating means within the bunker, means for introducing fresh air from the outer atmosphereinto one of the hollow sides, the space within said side and the space within the adjacent portion of the bottom forming a passageway for the fresh air opening i to the interior of ,the room-along said portfhie space within the other side forming a passageway for air from the upper portion of the room along the upper edge of saidside to adjacentbottom portion; and means for conportion to the'oute'r atmosphere. 7 a

6. The combination with a structure forming a room, of a bunker located inthe upper portion of theroom, refrigerating means disposed within the bunker, said bunker having ollowlwalls forming passageways, one passageway having an air egress opening at the lower portion of bunker and the other having an air ingress opening ,at the upper portion thereof, means for introducing air from the outer atmosphere into said'first passageway at an elevation above said air egress opening, and means for conducting air to the way at an elevation below opening; 7. In a refrigerator,a cabinet providing a chamber and having .a'door lending access the space within the second passagesaid an ingress noting the air from the interior of said last mentioned botto thereto, a bunker structure 'in the upper porhollow bafiles coexten-.- ofa side e bottom said. baflies being spaced from the ceiling of the chamber at the upper extremities of their side members to admit air to the upper portion of the bunker from the upper portion of said chamber at either side of the bunker, the interior of one of the side members communicating at its upper portion with the outer air, its respective bottom portion communicating along the inner edge thereof with the interior of the chamber at said port, the. interior of the other side member communieating along the upper extremity of said member with the interior of the chamber, the respective bottom portion of said last member communicating with the outer air.

8. In a refrigerator, a cabinet providinga chamber, a bunker structure in the upper portion of the chamber, a refrigerating element disposed within the bunker structure, said structure including upright hollow bafiles coextensively disposed andspaced from the ceiling of the chamber at their upper extremities to admit air to the upper portion of the bunker from the upper portion of said chamber at either side of the bunker, the interior of one of the baflles being in communication at its upper portion with the outer air and at a lower portion with the interior of the chamber, the interior of the other bafile being in communication at its upper portion with the interior of the chamher and at a lower portion with the outer air.

In testimony whereof I have affixed my signature to this specification.

CHARLES A. MOORE. 

